The people administering the actual voting process are the people who need scrutinising, as are the counters; these jobs are well paid and regarded as a perk by some local council employees
If you mean the staff who work on election day. I am a poll clerk, the polls are open 7am-10pm. We are expected to be ready to set up by 6.30am and go home when all is finished, usually about 10.30pm for me.
If you work out the pay, it is about minimum wage.
The presiding officer earns more, they are responsible for collecting the ballot box beforehand, taking it back at night and generally having overall responsibility.
I have never worked for the council apart from this.
Yes, many council employees do work on election day at the poll stations, I assume they still get paid their normal salary and someone else will have to cover for their absence. I don’t know if they have to take a day’s annual leave, to me that would be reasonable.
A missed box containing postal votes would be the responsibility of council staff I assume, as it would have been received prior to election day, nothing to do with polling station staff.